The Color Fastness Properties Affecting Factors
time：2019-02-14 13:19Browse：118Times
The chemical nature of the fiber. For example, cellulosic fibers dyed with reactive or vat dyes will show good fastness properties. Protein fibers dyed with acid mordant and reactive dyes will achieve good fastness properties and so on. That is to say compatibility of dye with the fiber is very important.
The molecular structure of a dye molecule: If the dye molecule is larger in size, it will be tightly entrapped inside the inter-polymer chain space of a fiber. Thus the fastness will be better.
The manner in which the dye is bonded to the fiber or the physical form present.
The amount of dye present in the fiber i.e. depth of shade. A deep shade will be less fast than a pale or light shade.
The presence of other chemicals in the material.
The actual conditions prevailing during exposure.
